Senior Systems Engineer/Product Owner TS/SCI w/ CI Poly, $135K - $155K + 15% 401k at Millennial Software Solutions Inc – Chantilly, Virginia

About Millennial Software:
Millennial Software is revolutionizing the landscape of security and defense by leveraging our core competencies in software development, systems engineering, automation, DevSecOps, and machine learning.

• We are an employee-owned company, every employee receives equity in the company
• 100% company-paid medical, dental, and vision premiums for you and all dependents
• Ability to get increased salary if you don't need medical/dental/vision
• 100% company-paid disability and life insurance benefits
• 15% 401(k) company contribution
• 30 days of PTO/holidays
• Generous training budget
• Paid Paternal and Maternal Leave
• Business development / growth incentives
• Top notch company swag

About the Position:
Millennial Software is seeking a Senior Systems Engineer with Agile Software Development Product Owner (PO) experience to join our collaborative team supporting a Government customer to advance Space Domain Awareness (SDA) missions. You’ll serve as the bridge between technical development teams, system architects, and mission stakeholders. This role combines systems engineering rigor with product ownership responsibilities, ensuring solutions are well-architected, aligned with requirements, and successfully delivered. The candidate will define and manage the team’s direction, manage backlogs, and translate customer needs into actionable development tasks, and guide system design and integration to support national security and SDA operations. The ideal candidate must be comfortable collaborating closely with users, designers, and backend developers to build polished, high-performance tools in mission-critical environments.

Essential Functions:

• Define and prioritize SDA-focused product features and technical requirements in collaboration with mission stakeholders, system architects, and development teams.
• Maintain and groom the product backlog, ensuring alignment with mission objectives and program milestones.
• Apply systems engineering practices to ensure effective data integration, interface design, and system performance in SDA applications.
• Serve as the liaison between users, stakeholders, and the development team to ensure clear communication of priorities and objectives.
• Support test planning, validation, and verification to confirm system capabilities meet SDA mission objectives.
• Monitor progress, identify risks, and provide solutions to ensure timely, high-quality delivery.

Required Qualifications:

• Active TS/SCI with CI Poly
• Bachelor’s Degree in Systems Engineering, Computer Science, Math, Physics, or related STEM discipline
• 10+ years of relevant experience (or 8+ years with a Graduate Degree)
• 2+ years of experience on a Space Domain Awareness (SDA) program within the USG
• Demonstrated experience defining requirements, managing backlogs, and supporting agile software development.
• Strong understanding of Space Domain Awareness (SDA) mission needs, data, or related space operations.
• Excellent communication skills with the ability to translate technical concepts into mission-focused outcomes.
• Excellent teamwork, communication, and problem-solving skills

Nice to have:

• Familiarity with agile software development practices and tools (e.g., Jira, Confluence).
• Knowledge of cloud architectures and modern data processing frameworks.
• Strong understanding of system integration challenges across classified and unclassified environments.
• Ability to interface with senior stakeholders and communicate complex technical concepts in clear, mission-focused terms.